REPOST QUESTION. what am i doing wrong? it says to find the surface area. The answer is 69.3cm^2. please help me

Mary used 1/7 of a spool of ribbon to complete 4 projects. she used the same amount of ribbon on each project. how much ribbon did she use on each project?

Determine the fraction of total interest owed. after the fourth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) =

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.